Species Bacteroides gracilis

Name: Bacteroides gracilis Tanner et al. 1981

Category: Species

Proposed as: sp. nov.

Etymology: gra’ci.lis. L. masc. adj. gracilis, slim, slender, thin

Pronunciation (Latin), gender: bak-ter-o-I-des GRA-ki-lis, masculine

Type strain: ATCC 33236; CCUG 27720; DSM 19528; FDC 1084; JCM 8538; NCTC 12738

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB971815 Analyse FASTA

Valid publication: Tanner ACR, Badger S, Lai CH, Listgarten MA, Visconti RA, Socransky SS. Wolinella gen. nov., Wolinella succinogenes (Vibrio succinogenes Wolin et al.) comb. nov., and description of Bacteroides gracilis sp. nov., Wolinella recta sp. nov., Campylobacter concisus sp. nov., and Eikenella corrodens from humans with periodontal disease. Int. J. Syst. Bacteriol. 1981; 31:432-445.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Campylobacter gracilis (Tanner et al. 1981) Vandamme et al. 1995

Risk group: 2

Synonyms:

Name	Kind
Campylobacter gracilis (Tanner et al. 1981) Vandamme et al. 1995	homotypic synonym, validly published under the ICNP

Notes:
- ❗ Bacteroides gracilis is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Bacteroides.
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
- 🎓 Name mentioned 44 times in PubMed until 2026-06-11.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
- 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧

Parent taxon: Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Tanner ACR, Badger S, Lai CH, Listgarten MA, Visconti RA, Socransky SS. Wolinella gen. nov., Wolinella succinogenes (Vibrio succinogenes Wolin et al.) comb. nov., and description of Bacteroides gracilis sp. nov., Wolinella recta sp. nov., Campylobacter concisus sp. nov., and Eikenella corrodens from humans with periodontal disease. Int. J. Syst. Bacteriol. 1981; 31:432-445.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.783447Link copied to clipboard

Record number: 783447

This LPSN page was printed on 2026-08-12 17:43:57

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Species Bacteroides gracilis